数据模型是数据库系统的核心和基础,Oracle数据库属于()。A.关系模型 B.层次

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问题:

数据模型是数据库系统的核心和基础,Oracle数据库属于()。

A.关系模型

B.层次模型

C.网状模型

D.面向对象数据模型(OO模型)

考点:电网调度运行人员考试电网调度自动化运行值班员电网调度自动化运行值班员题库
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下列情况下,物体的动量不变的是 (    )

A.汽车在平直的公路上匀速前进

B.汽车在转弯的过程中,速度的大小不变

C.水平飞来的小球撞到竖直墙面后,保持速度的大小不变沿原路返回

D.匀速直线运动的洒水车正在洒水

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Children arc tired________ doing their homework.        [ ]

A. at            

B. in            

C. of .        

D. with

题型:单项选择题

I went into Harrods in London (a huge department store I am sure you have heard of) to buy some Minton china plates for a wedding anniversary which was to be a group gift from friends to other friends in Geneva.

Having only 30 minutes between meeting. I whizzed there in a taxi from the office and battled through the milling people on the 2nd day of the sales on the ground floor up to the 5th to the china department. There was a man standing there who was obviously a sales person who I rushed up to and asked if he had this particular china in stock and if it would take long to wrap, etc. He was amazing. He got the plates in seconds, wrapped them up and asked me if I wanted a store card, to which I replied no, because I lived in Switzerland, to which he replied asking if, as I lived abroad, would like a tax rebate form(退税表). After that he showed me what to do, produced a map of the store and told me where I should go for the formalities(程序). That was fabulous! I thanked him and said what wonderful service he had given me. I even asked if he gave this to everyone, to which he answered: “I’m just doing what is required at Harrods”. With that, a tall man in a gray suit approached me and offered his hand to shake mine saying, “Can I introduce myself? I am the Chief Executive of Harrods and what an interesting conversation I have just heard…” He had been wandering through the store (as you should do as a hands-on CEO) and had overheard me thanking this salesman, whose face, I can hardly describe, was frozen in a mixture of delight awe and astonishment!

Can you imagine the salesman going home to his family and friends recounting what the CEO spoke to him after overhearing him being praised by a customer?

小题1:The writer went to Harrods to __________.

A.kill time

B.buy some gifts

C.go sightseeing

D.shop for her wedding小题2:What does the underlined word “whiz” in Paragraph 2 most probably mean?

A.drive

B.arrive

C.rush

D.leave小题3:Which of the following sentences can best replace “I’m just doing what is required at Harrods” in the second paragraph?

A.“I’m an honest man.”

B.“I must obey the rules.”

C.“Harrods is strict with its employees.”

D.“Anybody will receive our good service.”小题4:As soon as she bought what she wanted, the writer________.

A.went to a meeting.

B.flew back to Geneva

C.visited one of her friends

D.attended a wedding ceremony小题5:The writer wrote the above passage because she thought what she had experience was so ____.

A.pleasant

B.strange

C.exciting

D.amusing

题型:单项选择题

《基金法》的调整范围是证券投资基金的发行、交易、管理、托管等活动,目的是保护投资人及相关当事人的合法权益,促进()的健康发展。

A.证券交易所

B.证券投资基金

C.证券市场

D.证券公司

题型:单项选择题

竹茹宜采用的炮制方法是()

A.酒炙法

B.盐炙法

C.姜炙法

D.油炙法

E.蜜炙法

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